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cs.AI2026
Read Less, Solve More: Token-Efficient Sparse Reading for AI Agents
Zedong Liu, Jiaan Wu, Xinyang Ma +5
Long-horizon agents increasingly rely on repeated access to external artifacts, yet current reading interfaces often expose entire objects even when only sparse evidence is needed.…
cs.AI2026
Locating Failure in Multi-Page Visually Rich Document Understanding Systems: An Empirical Attribution
Lewei Xu, Yihao Ding, Zihan Xu +5
Multi-page visually rich document understanding (MP-VRDU) systems can fail when evidence is not faithfully represented, not selected, or not used correctly, yet final accuracy alon…